Default Nuget.config files configured for automatic package restore. Valid for NuGet 2.8

NuGet.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <config>
    <add key="repositorypath" value=".\..\Packages\" />
    <!-- Lowest/HighestPatch/HighestMinor/Highest -->
    <add key="dependencyversion" value="Highest" />
  </config>
    <packageRestore>
    <!-- Allow NuGet to download missing packages -->
    <add key="enabled" value="True" />
    <!-- Automatically check for missing packages during build in Visual Studio -->
    <add key="automatic" value="True" />
  </packageRestore>
  <packageSources>
    <!-- Add custom package repositories here -->
    <add key="nuget.org" value="https://www.nuget.org/api/v2/" />
  </packageSources>
</configuration>